BLACKFOOT 2 SSW, IDAHO

Period of Record General Climate Summary - Cooling Degree Days

Station:(100915) BLACKFOOT 2 SSW
From Year=1948 To Year=2006
Cooling Degree Days for Selected Base Temperature (F)
Base Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec. Annual
55 0 0 1 12 86 236 461 407 164 19 0 0 1386
57 0 0 0 6 59 187 400 346 123 9 0 0 1130
60 0 0 0 2 29 123 309 258 73 3 0 0 796
65 0 0 0 0 5 46 168 125 21 0 0 0 366
70 0 0 0 0 1 10 61 34 4 0 0 0 109
Cooling Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Table updated on Jul 28, 2006
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu